Knitting-machine.



W. W. BURSON. KNITTING MACHINE APPLICATION FILED JUNEQE 1996 1,046,147,-Patent-ed Dec. 1-912.

WITNES 9 61 Mm. wa 6M5 4 SHEETS--SHEET l. v

W. W. BURSON. KNETTING MACHINE.

APPLICATION FILED JUNE 22,1896.

1,0l6, 1 4'7, Patented Dec. 3, 1 912.

4 snsmv'snmr 2.

W. W. BURSON. KNITTING MACHINE.

APPLICATION FILED JUNE 9". 1896,

1,046.14. Patented D6C.3 ,1912.

' 4 SHEETS-SHEET a g H I |||||:n..

f x I KNITTING MACHINE.

W.- W. BURSQN. APPLICATION FILED JUNE 22, 1896.

1. G46 1 47 Patented Dec. 3, 1912.

4 SHEETS-SHEET 4.

v I @AWW loigz'lhlqh oin it ma y concern: h

f V vBe ritlmown that I, VILLIAA; lVon'rr-t ff- -Bfnnsox, a citizen oftheUnited States, ref, -fxf-sidingat Chicago, in the county of Cook}.-'5 :and the State of Illinois, have inventednce'r ftain new anduseful Improvements in. Knit ting-hiachinegcf which the fol-lowing 'is'a i specification.

My invention relates to improvements in -UMTED strntrns air];i 'iT- Crir- WILLIAM vVVOIB/JEH BURSOIL IOF CHICAGQ, ILLINOIS;

0 straightrow'knitting machines.

In .theaccompanying drawing :Figure 1 is'a plan view of certainportions. ofa knittingmachine;- having the invention applied thereto.Fig. 2- shows a rear elevation of certain of the parts of said machine."Fig. 3

; 1s a crosswise vertical section of Fig, 1. Fig.

shows. a central crosswise section of the yarn-ca'rrierand its supports.Fig. 6 shows 0' a plan view of the 'modlfied yarn carr er Ff.

' F 1g. is a section ofFigfG on the line 7 7 Sim lar letters ofreference denote the ame parts throughout the, several news.

The needle-beds A, A, Fig. 3, are fastened tothe base pieces B, B, ofthe machine- .frhni'e the usual manner. beds are constructed manner 7 aThe needles C are each provided with the The needle- 0 usual operatinglug c and have in addition The needle-retracting cams D, D, Fig. 4,

aremounted. onfthe cam-bars D 1) inl'nsiial manner, and are adjustablein any convenient manner. j

I The-needle-projecting cams D, D, are

Peach fastened to an'arm D Figs. 1 and. 3,

ewhi'ch latter is pivoted-to the corresponding cain-bar D? at cl, Fig.1, so a's to permit a movement vertical to the plane of the heedlecaused to occupy their 'jworking positiong to cause ..the needles ofboth rows to'be'simuh t'aneously advanced, as in ribbed knitting, or thesaid cams may be alternately raised :at the opposite sides ofthemachine, as n tubular knitting. For. the 'purposeof'thm descriptiontheyvertical movement of arm K D may be assumed to be given by hand, butfor'practical work automatic means should {be provided "to raise'andlower said arm,. as for instance in U. S; Letters Patent No.-

Specification of Letters Patent.

fish'owsthe-needle operating cams; F ig. 5'

in' anyapproved 'movement, whereby the said cams maybe 7KNITTING-MACHINE.

i i application-filed March 13, .1886. Recipro eating. movement iscommunicated to the caln-barsl), D from the sha-fbH-mounted 1n bearingson the machine-frame,by means of the crank Hoii said 'shaft and the-pit:man H? connecting saidcrank with an arm bars. The yarn-carrier E,' Figs. 1, 3'and-5, is

through which yarn passes to the needles.- This carrier is circularandrests in its sup-' port E, which inturn is carried by the bars G.-.Gmoving in the supports G, G,-Fig. 3,- which are fastened to the piecesA, A. film bars G, G, areoperativelyiconnected in suitable and usualmanner with thecain bars 1), D to move in unison; with the iatter. heslots 0 in said bars, coasting port E, permit the yarn-carrier tofallback each time a knitting movement is begun, and thus provide foradjustment of the yarn-carrier to the needle-movement in'eitherdirection. 3-1; Thej.-'arn-carrier E' is-provided with the Itwillbe perceived'that the said studs f,:f, etc., are the equivalent ofteeth. The hooked racks E E, areivoted at a, a,- to the side pieces A,A, o the. machine-frame, and are held in operating position by springsa,a', which permit the said racks to yield carries the studs against:tlre bartksof the teetlrofa r'ack. Thegeneral'constr uction of themachine being essentially oftl1'e' wellgk'nown' Lamb scribe in detailthose parts'which are wellknown, but only the novelfeatures. The meansandmanner .ofadjusting' the retract ing' cams D, D, and con'trollingthe'vertical movement ofthe projecting cams -D, D are' purposelyomitteda s torming'no part of'rmy invention.

"In operation, ne end of tne'yarn' from 616,60Qgranted December 27,1898' on my eitherfcone L is passed through the central r PatentedDec.3,1 912. ApplicationtiledJunc2 2 ,1896. Serial 110.553 6371. I

provided with two distributing eyes .-e,. ;e,-

with the pins e, e, ofthe yarn-carrier sup or stud H- projectingfrom oneof'said cam notches which are-formed inits peripherv.

as; the return movementioftheyarn carrierpattern," it'i's' not deemednecessary to "de overhead drawing-off guide Z, then through the eye of atake-up Z, then through the yarn-carrier eye 6, when it'is ready to beengaged by the needles C. Each cone has its central overhead drawing-ohguide Z,

. take-up Z, and yarn-carrier eye e. The knitting operation will beunderstood by reference to Fig. 4:. The lug c of a needle is acted uponby the retracting point d of cam D, to draw the needle down, and isthen-engaged by the point- (Z of cam D to project the needle. Then cam Ddraws the needle downward by means of retracting oin't- 03 a varn beinen a ed as the needle 'of the needle in all cases. This passes the firstyarn-carrier eye 0. The first yarn is knlt when the needle passes thesaid retracting point (1 The needle is again ad-' of the cams admits ofknitting back and forth on the same row.

\Vhen the needle enters the cam groove at the point (2, as in knittingfrom ieft to right, the knitting ends at (1*, and when it begins at d,as in knitting from right to left, it

ends at d.

When the yarn-carrier has passed over the.needles', one of the studs ofthe yarncarrier engages the first tooth of the toothed rack E andcon'secutivlv other studs enpoint's (Z,

construction gage the correspondingteeth of said rack,-

by which operation the yarn-carrier is turned one half around for thereturn stroke. On the succeeding movement in the other direction theyarn-carrier is again turned one-halt around by means of the other rac 4it completing one full revolution for each round of the knitting.

It will be understood that the supplycones L, L, containing the yarnsthat are being knit must have their relative positions changed as oftenas the yarn-carrier is turned, so as thereby to prevent the said yarnsfrom becoming twisted or entwined together. To accomplish this, thea-miular ring J is held above the machine by the supports J,

Fig. 3, which are connected with stationary parts of the machine. The.ring K provided with external teeth rests on the support J. Thesupply-cones L, L, are mounted on the ring K, as also the take-ups Z, Z.and drawing-off yarn guides Z, Z. Movement-is given to the ring K by themutilated gear I, Fig; 2, which is fastened on the crankshaft H andmeshes with pinion I on the lower end of the I, to hold said pinioneither of the 'delay surfaces 2',

edge with notches, as indicatedin 6, Q to receive the point of thedetent-spring FE, l ig. l, by which accidental move1nentof the l QYhieiiit d' esi red .to form the knitstitches 13d shaft I on the upper end ofwhich'shaft is the spur gear K which" meshes in the tooth of ring K. Ateach turnof the yarncarriers the yarn-cones L, L, are correspondinglyturned by a segment 2' of the mutilated gear I meshinginto pinion 1. Thein'uti lated gear Ihas the segments 2', z', oppositely located thereon,and between these segments outside of their radius, the delay tracks 2',z", for co-action with the fiat outer face of the lockin -piece Z Fig.2,of the bevel pinionv at rest when not'engaged by thesegm'ents. Thefiatsurface of the said locking-piece Z of pinion I is of such length as tohold the said ,pinionat rest while said flat surfaceis in contact with"i, oneof," I which with its corresponding "segment z' oc Y cupies justone half of the entire gear wheel I, the rotation of which gear givesthe pinion two complete intermittent revolutions for each of its singlerevolutions. If it is desired to change the yarn only i i at one, end ofthe needle-rows. then the proper rack E should .beremoved. and one 0'segment iomitted from gear I, which' 'will f 7 reduce the yarn-carriermovement to- 'one half revolution Efor eachround of lmittinggj -as alsothe movement of the-yarn-cones.

Figs. 6-and 7 of'the'drawings show a 5 modified form of yarn-carrier bymeans of which. when desired, two yarns may be de-' f livere'd togetherto .the same set of needles.

instead .of separately. to different needles"- as'withthe carrieralready described. The 9 yarn-carrier E of Figs. 6 and 7- is adapted tobe rotatahly mounted upon the yarnearrier fsupportE', Figs. 1, 2 and- 31To 7- thisend itis 'provided with a'disgkeshapedfi =bodycorrespondingsubstantially with that 5 I of the yarn-carriear E.v andcapable (if-fitting l l a socket or bearing which is, provided: upon thesaid support E, as in the case of .yarncarrier E; In practice, whendesired, the. two yarn-carriers maybe interchanged etc-.1105 carding asitis desired to produce 'onevaf riety ofknit goods or the other. .Z Iheyarn-.. carrier E is provided, below, with a' single... delivery-eye e,from which the yarnor yarns that are .threaded therethroughekuua tendto':the needles Above, the said yarncarrier is furnished with threeeyes, namelyv oppositelyrarranged eyes 6? and .65, and an ii'itermediate"eye e, all converging. toward, the delivery-eyes. In thenormal-position of the carrier E the three eyes 6 efl e I extend in a'line at ,right angles to; the l length of t-heneedle-beds. Thedisk-shaped ,i

body of the carrier E is formed in: its

yarn-carrier after being set or ad justed is prevented in the case ofeither ca1fr1er.

.of two yarns laid together, with one of such yarns appearing upon theouter face of the goods or fabric and the other thereof upon the innerface thereof, the said yarns are led, respectively," through the eyes6*? and 6, respectively, before being drawn through. eye e. The yarnwhich is to appear at the outer face of the goods or fabric is ledthrough that eye (e or e?) which, 'dtiringthetraverse of the carrier ina, given direction in the operation of the machine,

is turned toward the outer side of the fabric,

fthe other yarn being led through the eye which is turned toward theinner side of the adapted to advance the needles, a retracting-- 'camadapted to draw down theneedles to knit one yarn, both of said camsacting upon one of the said lugs, and the retracting cam in additionprovided on its upper-edge with a projecting part adapted to act uponthe other of said. lugs to advance the needle afterthe stitch is formed,substantially as set forth.

'2. The combination with a needle provided. with two lugs, of theprojecting cam D: and the retracting cam D both engaging with the samelug, the said retracting cam in addition'const-ructed to move the needleupward to pay back the needle by engagement with the other lug,substantially as set forth.

The combination of a series of needles, reciprocating'knitting came, ayarn carrier provided with two distributing eyes and supplying two yarnswhich are both knit' by the same needles at each reciprocatiom-a yarncone holder with an outside support and a central openlng, and mechanismfor turning the yarn carrier and cone holder at the curb of the knittingstroke, substantially as described.

- 4. The combination of a crank-shaft, mutilated gear, and intermediategears, and annular ring K, and a knitting mechanism including traversingyarn-guides receiving the yarn from supplies carried by the said ring,operating substantially as and for the purpose set forth. I

WILLIAM WORTH BURSON. Witnesses i v i WM. T. La'rHRor, H. D. EASTMAN.

